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Abstract

Clinical research has been rapidly evolving towards the development of less invasive surgical procedures. We
recently embarked on a project to improve intracardiac beating heart interventions. Our novel approach employs
new surgical technologies and support from image-guidance via pre-operative and intra-operative imaging (i.e.
two-dimensional echocardiography) to substitute for direct vision. Our goal was to develop a versatile system
that allowed for safe cardiac port access, and provide sufficient image-guidance with the aid of a virtual reality
environment to substitute for the absence of direct vision, while delivering quality therapy to the target. Specific targets included the repair and replacement of heart valves and the repair of septal defects. The ultimate
objective was to duplicate the success rate of conventional open-heart surgery, but to do so via a small incision,
and to evaluate the efficacy of the procedure as it is performed. This paper describes the software and hardware
components, along with the methodology for performing mitral valve replacement as one example of this
approach, using ultrasound and virtual tool models to position and fasten the valve in place.

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Advanced PhotonicsJournal of Applied Remote SensingJournal of Astronomical Telescopes Instruments and SystemsJournal of Biomedical OpticsJournal of Electronic ImagingJournal of Medical ImagingJournal of Micro/Nanolithography, MEMS, and MOEMSJournal of NanophotonicsJournal of Photonics for EnergyNeurophotonicsOptical EngineeringSPIE Reviews